| Allegro CL version 6.2 Unrevised from 6.1 | |||||||||
Arguments: stream
This function returns the column number where the next character
will be written, or nil if that is not
meaningful for stream. The first column on a line
is numbered 0. This function is used in the implementation of the
pretty printer and the format
~T directive. For every character output stream class that is defined,
a method must be defined for this function, although it is permissible
for it to always return nil.
Beginning with version 6.1, simple-streams now implement stream-line-column as a part of the standard interface, rather than as a simple call to charpos when the :gray-compat module is loaded. For simple-streams, stream-line-column is setfable. See the discussion of charpos and stream-line-column in Details of stream-line-column and charpos in streams.htm.
See also streams.htm for general information on streams in Allegro CL.
Copyright (c) 1998-2002, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 6.2. This page was not revised from the 6.1 page.
Created 2002.2.26.
| Allegro CL version 6.2 Unrevised from 6.1 | |||||||||